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Locomotive Head-Light. No. 14,942. Patented May 20, 1856.

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Locomotive Head-Light Patented May 20, 1856,

UNITED STATES PATENT OFFICE.

JOHN STUBER, OF UTIOA, NEW YORK, ASSIGNOR TO JOHN CARTON, OF SAME PLACE.

LOCOMOTIVE AND RAILROAD LAMP.

Specification forming part of Letters Patent No. 14,942, dated May 20, 1856; Reissued July 16, 1867, No. 2,680.

To aZZ whom it may concern Be it known that I, JOHN STUBER, of the city of Utica, in the county of Oneida and State of New York, have invented a new and useful Lamp to be Used in Front of Locomotives on Railroads by Reason of its Bril liant Light, and is applicable to all. other uses where a clear and brilliant light is required; and I do hereby declare that the fol lowing is a clear and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which similar letters refer to like parts of the lamp in all the drawings.

Figure 1, is a sectional view of my lamp, showing in outline the exterior and interior construction thereof. Fig. 2, is an exterior elevation thereof as when all its parts are together for use.

The nature of my invention consists in rendering the supply of oil to the burner more constant and uniform, and also in conveying to the flame of the burning lamp a more abundant supply of oxygen, applied through the medium of the air, and applying it in a more useful and advantageous manner than has been heretofore done.

a, Z), c, Fig. 1, is the outward frame or case of the lamp.

(Z, 6, is the inner cylinder containing the oil and the mechanical means of forcing it up to the burner.

f, is the oil chamber within the last mentioned cylinder.

9, is a circular leather valve playing vertically within the cylinder and resting on the surface of the oil.

h, h, is a spiral spring coiled within the cylinder, and operating between the valve 9, and the head 2' of the cylinder.

J, is the valve rod, intended merely to assist in keeping the valve steady, and Z0 is the ratchet bar, by which the valve 9 is operated by means of the key Z. Both ratchet bar and valve rod are firmly affixed to the valve at m, and pass through separate gage holes in the head of the cylinder at n. There is a small pinion on the key Z, which works in the ratchet teeth in the bar is, raising the valve g, when desired.

0 is the burner, p, being the circular space between the cylinder 9 and r, in which the wick moves in the usual manner. The bent tube 10 conducts the oil from the tube at, to the burner.

s, is a drip cup, to catch the surplus oil as it descends from the wick. t is another oil cup, receiving the oil from the drip cup .9, and transmitting it through the short pipe 3 to the interior of the cylinder (Z, 6, whence when the valve is raised it finds its way back to the fountain f. The lamp is also fed by pouring the oil into the cup t, at the same time raising the valve 9, by means of the key Z, as before described. This valve in being raised collapses at its circumference, allowing the oil to descend to the fountain f.

The operation is thus: The valve 9 being raised by means of the key Z in the manner described, the lamp is filled by introducing the oil through the cup t. The valve is then let down upon the surface of the oil, being pressed down by the tension of the spiral spring 71, h. It closes tight at its circumference within the cylinders, forcing the oil through the short tube 71, into the tube u, and thence through the tube to into the burner, whence the surplus returns, through the tube X, as before described. The burner is thus furnished with a constant and abundant supply of oil.

To regulate the flow of oil through the tube u, I introduce the screw-rod Z, which by reason of the thread A furnishes a spiral passage around the rod for the oil, and is found in practice to serve a valuable purpose in regulating the flow of oil to the burner. It is shown separately in Fig. The tube a (Fig. 1) which contains it, passes up through the cup 2/, as shown in the figure, and has a cap B, at its upper end, which is screwed down over the end of the rod and is made perfectly tight, or if itshould leak the oil passes directly into the cup 25 and does no harm.

For the purpose of furnishing the interior of the circle of flame at the burner, a more abundant supply of oxygen, through the means of a greater supply of air, and that applied in a more advantageous manner, I introduce within the burner cylinder the tube D, which is separately shown in Fig. 4. It expands at its lower end E, in the shape of an inverted tunnel, to receive the air, and also forms a closed funnel top F, as shown in the figure, with small apertures at the sides all around for the exit of the air in a transverse or horizontal direction. The thimble G, better seen in Fig. 4, is merely added to support the tube when in its position in the burner, its perimeter H, being turned over so as to rest 011 the top of the burner cylinder. The air is allowed to pass up within the burner cylinder, as indicated by the arrows 1 and 2, and also within the tube, as indicated by the arrows 3 and 4. That which passes up in the cylinder rises when it reaches the flame of the lamp in the same direction of the blaze, but that which passes up through the tube D, issues through the small apertures in the funnel top and strikes the blaze in a transverse direction, penetrating and expanding the blaze, furnishing an abundant and constant supply of oxygen and greatly enhancing the brilliancy of the light. The position of the feeder of oxygen is better shown at F, Fig. 2, where the usual cap L, is placed over the burner. The cap M is also added to the main body of the lamp here, covering the frame work N (Fig. 1). There is no feeding of oil at B (Fig. 2) as in other lamps, and all is kept dry and clean here. The aperture R, serves only to permit the operation of the ratchet bar, by the use of the key Z, as before described.

The thumb screw T, here shown, is used in the usual manner for raising the wick, and thesmall set screw U, fastens the cap L, when adjusted by means of the strap Y.

There is a joint in the tube at K, which is ground to a tight fit. This enables the operator by simply loosening the screws at the base of the burner cylinder to lift off the burner for trimming or cleanmg.

I improve the supply of air furnished to the outside of the flame also by introducing within the cap cylinder I, (Fig. 2,) a tubed structure A, (Fig. The usual circular passage around the burner cylinders for the ascent of the air is closed up near its bottom, leaving suitable holes to admit the lower ends of the short tubes, 5, 6, 7, these standing vertically. The structure A, is dropped in around the burner cylinders before the cap L, (Fig. 2,) is put upon the cylinder I, in such a manner as to insert the lower end of the short tubes in these holes. This forces the air in ascending around the outside of the burner to rise through the tubes 5, 6, 7, (Fig. 5,) and issue around the flame of the lamp through the apertures 0, d, e, in the circular hollow ring B.

I do not herein claim as new generally the forcing of the oil from the oil chamber into the burner by means of the spiral spring and valve, nor the operating of the valve by means of the ratchet bar and key, as herein described, as these devices have heretofore been used; but

1 claim as new, and desire to secure by Letters Patent:

1. The tubed structure A (Fig. 5) as combined with the burner to regulate the flow of air to the exterior of the flame of the lamp, as described.

2. I also claim the arrangement of the feeding cup t, and the tube it, provided with the regulating spirally grooved fillet A, in the manner described, and for the purposes specified, these improvements being each constructed, arranged and combined sub stantially in the manner and for the purposes herein set forth.

JOH. STUBER. WVitnesses:

\VILLIAM BAKER, Gno. H. CONGAN.

[FIRST PRINTED 1912.] 

